[jira] [Commented] (ZOOKEEPER-3232) make the log of notification about LE more readable

["maoling (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/ZOOKEEPER-3232?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16731589#comment-16731589 ] 

maoling commented on ZOOKEEPER-3232:
------------------------------------

The log is changed to like this:
{code:java}
// code placeholder
2019-01-01 18:18:40,073 [myid:2] - INFO [WorkerReceiver[myid=2]:FastLeaderElection@688] - Notification: my state:FOLLOWING; n.sid:3, n.state:LOOKING, n.leader:3, n.round:0x1, n.peerEpoch:0x10, n.zxid:0x1000000000, message format version:0x2, n.config version:0x0

2019-01-01 20:24:44,873 [myid:2] - INFO [WorkerReceiver[myid=2]:FastLeaderElection@688] - Notification: my state:LOOKING; n.sid:2, n.state:LOOKING, n.leader:3, n.round:0x2, n.peerEpoch:0x11, n.zxid:0x1100000000, message format version:0x2, n.config version:0x0{code}
 

> make the log of notification about LE more readable
> ---------------------------------------------------
>
>                 Key: ZOOKEEPER-3232
>                 URL: https://issues.apache.org/jira/browse/ZOOKEEPER-3232
>             Project: ZooKeeper
>          Issue Type: Improvement
>          Components: leaderElection
>            Reporter: maoling
>            Assignee: maoling
>            Priority: Minor
>
> the log of notification about LE is very important to help us to see the process of LE:e.g.
> {code:java}
> 2019-01-01 16:29:27,494 [myid:2] - INFO [WorkerReceiver[myid=2]:FastLeaderElection@595] - Notification: 1 (message format version), 3 (n.leader), 0x60b3dc215 (n.zxid), 0x3 (n.round), FOLLOWING (n.state), 1 (n.sid), 0x7 (n.peerEpoch) LOOKING (my state){code}
> the current log have some problems:
> 1:don't use the placeholder(other:+),don't in the style of k:v（antiman）
> 2.the properties in the logs are very messed(no group by,no order), not easy to read.
> 3.the value about version is HEX which don't have the 0x prefix.



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